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An in-line resettable fuse between the panel and solar regulator can also be used as an isolator.
Useful if changing batteries where you need to connect the battery first before the solar panels to establish the operating voltage (if you have a dual voltage regulator).
My Victron charge controller on my trailer does not require a fuse between the solar panels and regulator, but I still added so I could use as an isolator.
A very simple solution to this problem is to change the batteries at night or just disconnect the battery feed from the solar controller IF it worries you[thumbsupbig]Quote:
Originally Posted by DiscoDB
There is absolutely NO need of a fuse between the panels and the controller.
Actually was simpler to add an inline circuit breaker fuse with manual reset.
May not be needed but it is very good practice.
Cheap insurance.